Practice S3.1 The periodic table: Classification of elements with authentic IB Chemistry exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like atomic structure, chemical reactions, and organic chemistry. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
What trend is observed across a period in the periodic table?
Which of the following best explains the chemical similarity of the Group 17 elements?
Which element is in Period 4 and Group 2 of the periodic table?
Which of the following ions has the smallest radius?
A research team investigates the chemical behavior of Period 3 oxides to understand their industrial and environmental applications. The team analyzes the following oxides: , , and .
Classify the type of bonding in each of the following oxides and relate it to their position in Period 3:
Describe the trend in acid–base character of the oxides across Period 3 from sodium to chlorine.
Predict whether reacts with both acids and bases, and justify your answer using acid–base theory.
Group 1 metals react vigorously with water.
Write a balanced chemical equation for the reaction of lithium with water.
Compare the reactivity of lithium and potassium with water.
Explain the trend in reactivity of Group 1 elements down the group using atomic structure.
Which solution forms when phosphorus(V) oxide, , reacts with water?
| Answer | Product | pH of solution |
|---|---|---|
| A | ||
| B | ||
| C | ||
| D |
What is the trend in ionic radius across Period 3 from to for the positive ions only?
Which element in Period 3 has the highest first ionization energy?
Electron configurations reveal periodic patterns.
State the number of valence electrons in an atom of oxygen.
Deduce the electron configuration of phosphorus ().
Explain how the group number relates to the number of valence electrons.
Practice S3.1 The periodic table: Classification of elements with authentic IB Chemistry exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like atomic structure, chemical reactions, and organic chemistry. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
What trend is observed across a period in the periodic table?
Which of the following best explains the chemical similarity of the Group 17 elements?
Which element is in Period 4 and Group 2 of the periodic table?
Which of the following ions has the smallest radius?
A research team investigates the chemical behavior of Period 3 oxides to understand their industrial and environmental applications. The team analyzes the following oxides: , , and .
Classify the type of bonding in each of the following oxides and relate it to their position in Period 3:
Describe the trend in acid–base character of the oxides across Period 3 from sodium to chlorine.
Predict whether reacts with both acids and bases, and justify your answer using acid–base theory.
Group 1 metals react vigorously with water.
Write a balanced chemical equation for the reaction of lithium with water.
Compare the reactivity of lithium and potassium with water.
Explain the trend in reactivity of Group 1 elements down the group using atomic structure.
Which solution forms when phosphorus(V) oxide, , reacts with water?
| Answer | Product | pH of solution |
|---|---|---|
| A | ||
| B | ||
| C | ||
| D |
What is the trend in ionic radius across Period 3 from to for the positive ions only?
Which element in Period 3 has the highest first ionization energy?
Electron configurations reveal periodic patterns.
State the number of valence electrons in an atom of oxygen.
Deduce the electron configuration of phosphorus ().
Explain how the group number relates to the number of valence electrons.